Results 1 to 10 of about 5,021,065 (259)

The Maximal Ideal Space of C(K, A)

open access: yesJournal of Mathematical Extension, 2007
Let C(K, A) denote the space of all continuous Avalued functions on the compact Hausdorff space K, where A is a commutative Banach algebra. In this paper we show that the maximal ideal space of C(K, A) can be identified with K × M, where M denotes ...
M. H. Shirdarreh Haghighi
doaj   +2 more sources

Sequences in the Maximal Ideal Space of H ∞ [PDF]

open access: yesProceedings of the American Mathematical Society, 1990
This paper studies the behavior of sequences in the maximal ideal space of the algebra of bounded analytic functions on an arbitrary domain. The main result states that for any such sequence, either the sequence has an interpolating subsequence or infinitely many elements of the sequence lie in the same Gleason part.
Sheldon Axler, Pamela Gorkin
openaire   +2 more sources

Maximal elements in the maximal ideal space of a measure algebra

open access: yesMathematische Annalen, 1980
Let ~ ' be a semi-simple commutative convolution measure algebra as described by Taylor [9]. The maximal ideal space A of ~ ' is representable as the semigroup of continuous semicharacters on a compact semigroup the structure semigroup of J/g. Using this description of A, Taylor has shown that the strong boundary points he A of ~ ' must have idempotent
Brown, Gavin, Moran, William
exaly   +2 more sources

Decompositions of the Maximal Ideal Space of L ∞ [PDF]

open access: yesTransactions of the American Mathematical Society, 1984
In this paper we show the existence of one point maximal antisymmetric sets for H
exaly   +2 more sources

The maximal ideal space of a noetherian ring

open access: yesJournal of Pure and Applied Algebra, 1976
Roger Wiegand, Sylvia Wiegand
exaly   +3 more sources

C(X) determines X - an inherent theory

open access: yesApplied General Topology, 2023
One of the fundamental problem in rings of continuous function is to extract those spaces for which C(X) determines X, that is to  investigate X and Y such that C(X) isomorphic with C(Y ) implies X homeomorphic with Y.
Biswajit Mitra, Sanjib Das
doaj   +1 more source

Closed ideals in the functionally countable subalgebra of C(X)

open access: yesApplied General Topology, 2022
In this paper, closed ideals in Cc(X), the functionally countable subalgebra of C(X), with the mc-topology, is studied. We show that if X is CUC-space, then C*c(X) with the uniform norm-topology is a Banach algebra.
Amir Veisi
doaj   +1 more source

On e-spaces and rings of real valued e-continuous functions

open access: yesApplied General Topology, 2023
Whenever the closure of an open set is also open, it is called e-open and if a space have a base consisting of e-open sets, it is called e-space. In this paper we first introduce and study e-spaces and e-continuous functions (we call a function f from a ...
Susan Afrooz   +2 more
doaj   +1 more source

Semi generalization of δI*-closed sets in ideal topological space

open access: yesRatio Mathematica, 2022
In this paper we introduce the notion of semi generalized dI*-closed sets or gsdI*-closed sets using semi open sets and investigate its basic properties and characterizations in an ideal topological space.
K Palani, M Karthigai Jothi
doaj   +1 more source

Intermediate rings of complex-valued continuous functions

open access: yesApplied General Topology, 2021
For a completely regular Hausdorff topological space X, let C(X, C) be the ring of complex-valued continuous functions on X, let C ∗ (X, C) be its subring of bounded functions, and let Σ(X, C) denote the collection of all the rings that lie between C ...
Amrita Acharyya   +3 more
doaj   +1 more source

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